Reddit is in a hot spot for bitcoin.
The social news site is at the center of a growing controversy over the use of a popular cryptocurrency called Bitcoin, which it says is not backed by a government or central bank.
The company says it has taken steps to address concerns that it may be used to launder money.
And Reddit is using a powerful tool to combat a growing number of complaints about the currency, which some believe is being used for illicit purposes. 1 of 3